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Annotation of /trunk/kernel-alx/patches-4.14/0177-4.14.78-all-fixes.patch

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Revision 3238 - (hide annotations) (download)
Fri Nov 9 12:14:58 2018 UTC (5 years, 7 months ago) by niro
File size: 67338 byte(s)
-added up to patches-4.14.79
1 niro 3238 diff --git a/Makefile b/Makefile
2     index 16d1a18496fb..89574ee68d6b 100644
3     --- a/Makefile
4     +++ b/Makefile
5     @@ -1,7 +1,7 @@
6     # SPDX-License-Identifier: GPL-2.0
7     VERSION = 4
8     PATCHLEVEL = 14
9     -SUBLEVEL = 77
10     +SUBLEVEL = 78
11     EXTRAVERSION =
12     NAME = Petit Gorille
13    
14     diff --git a/arch/arc/Makefile b/arch/arc/Makefile
15     index 6c1b20dd76ad..7c6c97782022 100644
16     --- a/arch/arc/Makefile
17     +++ b/arch/arc/Makefile
18     @@ -6,34 +6,12 @@
19     # published by the Free Software Foundation.
20     #
21    
22     -ifeq ($(CROSS_COMPILE),)
23     -ifndef CONFIG_CPU_BIG_ENDIAN
24     -CROSS_COMPILE := arc-linux-
25     -else
26     -CROSS_COMPILE := arceb-linux-
27     -endif
28     -endif
29     -
30     KBUILD_DEFCONFIG := nsim_700_defconfig
31    
32     cflags-y += -fno-common -pipe -fno-builtin -mmedium-calls -D__linux__
33     cflags-$(CONFIG_ISA_ARCOMPACT) += -mA7
34     cflags-$(CONFIG_ISA_ARCV2) += -mcpu=archs
35    
36     -is_700 = $(shell $(CC) -dM -E - < /dev/null | grep -q "ARC700" && echo 1 || echo 0)
37     -
38     -ifdef CONFIG_ISA_ARCOMPACT
39     -ifeq ($(is_700), 0)
40     - $(error Toolchain not configured for ARCompact builds)
41     -endif
42     -endif
43     -
44     -ifdef CONFIG_ISA_ARCV2
45     -ifeq ($(is_700), 1)
46     - $(error Toolchain not configured for ARCv2 builds)
47     -endif
48     -endif
49     -
50     ifdef CONFIG_ARC_CURR_IN_REG
51     # For a global register defintion, make sure it gets passed to every file
52     # We had a customer reported bug where some code built in kernel was NOT using
53     @@ -87,7 +65,7 @@ ldflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB
54     # --build-id w/o "-marclinux". Default arc-elf32-ld is OK
55     ldflags-$(upto_gcc44) += -marclinux
56    
57     -LIBGCC := $(shell $(CC) $(cflags-y) --print-libgcc-file-name)
58     +LIBGCC = $(shell $(CC) $(cflags-y) --print-libgcc-file-name)
59    
60     # Modules with short calls might break for calls into builtin-kernel
61     KBUILD_CFLAGS_MODULE += -mlong-calls -mno-millicode
62     diff --git a/arch/powerpc/include/asm/code-patching.h b/arch/powerpc/include/asm/code-patching.h
63     index 2c895e8d07f7..812535f40124 100644
64     --- a/arch/powerpc/include/asm/code-patching.h
65     +++ b/arch/powerpc/include/asm/code-patching.h
66     @@ -31,6 +31,7 @@ unsigned int create_cond_branch(const unsigned int *addr,
67     unsigned long target, int flags);
68     int patch_branch(unsigned int *addr, unsigned long target, int flags);
69     int patch_instruction(unsigned int *addr, unsigned int instr);
70     +int raw_patch_instruction(unsigned int *addr, unsigned int instr);
71    
72     int instr_is_relative_branch(unsigned int instr);
73     int instr_is_relative_link_branch(unsigned int instr);
74     diff --git a/arch/powerpc/kernel/tm.S b/arch/powerpc/kernel/tm.S
75     index 1da12f521cb7..b735b727ed2b 100644
76     --- a/arch/powerpc/kernel/tm.S
77     +++ b/arch/powerpc/kernel/tm.S
78     @@ -167,13 +167,27 @@ _GLOBAL(tm_reclaim)
79     std r1, PACATMSCRATCH(r13)
80     ld r1, PACAR1(r13)
81    
82     - /* Store the PPR in r11 and reset to decent value */
83     std r11, GPR11(r1) /* Temporary stash */
84    
85     + /*
86     + * Move the saved user r1 to the kernel stack in case PACATMSCRATCH is
87     + * clobbered by an exception once we turn on MSR_RI below.
88     + */
89     + ld r11, PACATMSCRATCH(r13)
90     + std r11, GPR1(r1)
91     +
92     + /*
93     + * Store r13 away so we can free up the scratch SPR for the SLB fault
94     + * handler (needed once we start accessing the thread_struct).
95     + */
96     + GET_SCRATCH0(r11)
97     + std r11, GPR13(r1)
98     +
99     /* Reset MSR RI so we can take SLB faults again */
100     li r11, MSR_RI
101     mtmsrd r11, 1
102    
103     + /* Store the PPR in r11 and reset to decent value */
104     mfspr r11, SPRN_PPR
105     HMT_MEDIUM
106    
107     @@ -198,11 +212,11 @@ _GLOBAL(tm_reclaim)
108     SAVE_GPR(8, r7) /* user r8 */
109     SAVE_GPR(9, r7) /* user r9 */
110     SAVE_GPR(10, r7) /* user r10 */
111     - ld r3, PACATMSCRATCH(r13) /* user r1 */
112     + ld r3, GPR1(r1) /* user r1 */
113     ld r4, GPR7(r1) /* user r7 */
114     ld r5, GPR11(r1) /* user r11 */
115     ld r6, GPR12(r1) /* user r12 */
116     - GET_SCRATCH0(8) /* user r13 */
117     + ld r8, GPR13(r1) /* user r13 */
118     std r3, GPR1(r7)
119     std r4, GPR7(r7)
120     std r5, GPR11(r7)
121     diff --git a/arch/powerpc/lib/code-patching.c b/arch/powerpc/lib/code-patching.c
122     index 882c750dc519..130405158afa 100644
123     --- a/arch/powerpc/lib/code-patching.c
124     +++ b/arch/powerpc/lib/code-patching.c
125     @@ -39,7 +39,7 @@ static int __patch_instruction(unsigned int *exec_addr, unsigned int instr,
126     return 0;
127     }
128    
129     -static int raw_patch_instruction(unsigned int *addr, unsigned int instr)
130     +int raw_patch_instruction(unsigned int *addr, unsigned int instr)
131     {
132     return __patch_instruction(addr, instr, addr);
133     }
134     @@ -156,7 +156,7 @@ static int do_patch_instruction(unsigned int *addr, unsigned int instr)
135     * when text_poke_area is not ready, but we still need
136     * to allow patching. We just do the plain old patching
137     */
138     - if (!this_cpu_read(*PTRRELOC(&text_poke_area)))
139     + if (!this_cpu_read(text_poke_area))
140     return raw_patch_instruction(addr, instr);
141    
142     local_irq_save(flags);
143     diff --git a/arch/powerpc/lib/feature-fixups.c b/arch/powerpc/lib/feature-fixups.c
144     index 762a899e85a4..e1bcdc32a851 100644
145     --- a/arch/powerpc/lib/feature-fixups.c
146     +++ b/arch/powerpc/lib/feature-fixups.c
147     @@ -63,7 +63,7 @@ static int patch_alt_instruction(unsigned int *src, unsigned int *dest,
148     }
149     }
150    
151     - patch_instruction(dest, instr);
152     + raw_patch_instruction(dest, instr);
153    
154     return 0;
155     }
156     @@ -92,7 +92,7 @@ static int patch_feature_section(unsigned long value, struct fixup_entry *fcur)
157     }
158    
159     for (; dest < end; dest++)
160     - patch_instruction(dest, PPC_INST_NOP);
161     + raw_patch_instruction(dest, PPC_INST_NOP);
162    
163     return 0;
164     }
165     @@ -292,7 +292,7 @@ void do_lwsync_fixups(unsigned long value, void *fixup_start, void *fixup_end)
166    
167     for (; start < end; start++) {
168     dest = (void *)start + *start;
169     - patch_instruction(dest, PPC_INST_LWSYNC);
170     + raw_patch_instruction(dest, PPC_INST_LWSYNC);
171     }
172     }
173    
174     @@ -310,7 +310,7 @@ static void do_final_fixups(void)
175     length = (__end_interrupts - _stext) / sizeof(int);
176    
177     while (length--) {
178     - patch_instruction(dest, *src);
179     + raw_patch_instruction(dest, *src);
180     src++;
181     dest++;
182     }
183     diff --git a/drivers/clocksource/timer-fttmr010.c b/drivers/clocksource/timer-fttmr010.c
184     index cdf23b628688..cdfe1c82f3f0 100644
185     --- a/drivers/clocksource/timer-fttmr010.c
186     +++ b/drivers/clocksource/timer-fttmr010.c
187     @@ -130,13 +130,17 @@ static int fttmr010_timer_set_next_event(unsigned long cycles,
188     cr &= ~fttmr010->t1_enable_val;
189     writel(cr, fttmr010->base + TIMER_CR);
190    
191     - /* Setup the match register forward/backward in time */
192     - cr = readl(fttmr010->base + TIMER1_COUNT);
193     - if (fttmr010->count_down)
194     - cr -= cycles;
195     - else
196     - cr += cycles;
197     - writel(cr, fttmr010->base + TIMER1_MATCH1);
198     + if (fttmr010->count_down) {
199     + /*
200     + * ASPEED Timer Controller will load TIMER1_LOAD register
201     + * into TIMER1_COUNT register when the timer is re-enabled.
202     + */
203     + writel(cycles, fttmr010->base + TIMER1_LOAD);
204     + } else {
205     + /* Setup the match register forward in time */
206     + cr = readl(fttmr010->base + TIMER1_COUNT);
207     + writel(cr + cycles, fttmr010->base + TIMER1_MATCH1);
208     + }
209    
210     /* Start */
211     cr = readl(fttmr010->base + TIMER_CR);
212     diff --git a/drivers/clocksource/timer-ti-32k.c b/drivers/clocksource/timer-ti-32k.c
213     index 880a861ab3c8..713214d085e0 100644
214     --- a/drivers/clocksource/timer-ti-32k.c
215     +++ b/drivers/clocksource/timer-ti-32k.c
216     @@ -98,6 +98,9 @@ static int __init ti_32k_timer_init(struct device_node *np)
217     return -ENXIO;
218     }
219    
220     + if (!of_machine_is_compatible("ti,am43"))
221     + ti_32k_timer.cs.flags |= CLOCK_SOURCE_SUSPEND_NONSTOP;
222     +
223     ti_32k_timer.counter = ti_32k_timer.base;
224    
225     /*
226     diff --git a/drivers/gpu/drm/arm/malidp_drv.c b/drivers/gpu/drm/arm/malidp_drv.c
227     index 1a57cc28955e..ff3348ee9595 100644
228     --- a/drivers/gpu/drm/arm/malidp_drv.c
229     +++ b/drivers/gpu/drm/arm/malidp_drv.c
230     @@ -617,6 +617,7 @@ static int malidp_bind(struct device *dev)
231     drm->irq_enabled = true;
232    
233     ret = drm_vblank_init(drm, drm->mode_config.num_crtc);
234     + drm_crtc_vblank_reset(&malidp->crtc);
235     if (ret < 0) {
236     DRM_ERROR("failed to initialise vblank\n");
237     goto vblank_fail;
238     diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
239     index 562220ec9d41..c75f4ccbcdef 100644
240     --- a/drivers/gpu/drm/i915/i915_drv.c
241     +++ b/drivers/gpu/drm/i915/i915_drv.c
242     @@ -878,7 +878,6 @@ static int i915_driver_init_early(struct drm_i915_private *dev_priv,
243    
244     spin_lock_init(&dev_priv->mm.object_stat_lock);
245     mutex_init(&dev_priv->sb_lock);
246     - mutex_init(&dev_priv->modeset_restore_lock);
247     mutex_init(&dev_priv->av_mutex);
248     mutex_init(&dev_priv->wm.wm_mutex);
249     mutex_init(&dev_priv->pps_mutex);
250     @@ -1505,11 +1504,6 @@ static int i915_drm_suspend(struct drm_device *dev)
251     pci_power_t opregion_target_state;
252     int error;
253    
254     - /* ignore lid events during suspend */
255     - mutex_lock(&dev_priv->modeset_restore_lock);
256     - dev_priv->modeset_restore = MODESET_SUSPENDED;
257     - mutex_unlock(&dev_priv->modeset_restore_lock);
258     -
259     disable_rpm_wakeref_asserts(dev_priv);
260    
261     /* We do a lot of poking in a lot of registers, make sure they work
262     @@ -1718,10 +1712,6 @@ static int i915_drm_resume(struct drm_device *dev)
263    
264     intel_fbdev_set_suspend(dev, FBINFO_STATE_RUNNING, false);
265    
266     - mutex_lock(&dev_priv->modeset_restore_lock);
267     - dev_priv->modeset_restore = MODESET_DONE;
268     - mutex_unlock(&dev_priv->modeset_restore_lock);
269     -
270     intel_opregion_notify_adapter(dev_priv, PCI_D0);
271    
272     intel_autoenable_gt_powersave(dev_priv);
273     diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
274     index 51411894d2cd..41f51509c9e4 100644
275     --- a/drivers/gpu/drm/i915/i915_drv.h
276     +++ b/drivers/gpu/drm/i915/i915_drv.h
277     @@ -1183,6 +1183,7 @@ enum intel_sbi_destination {
278     #define QUIRK_BACKLIGHT_PRESENT (1<<3)
279     #define QUIRK_PIN_SWIZZLED_PAGES (1<<5)
280     #define QUIRK_INCREASE_T12_DELAY (1<<6)
281     +#define QUIRK_INCREASE_DDI_DISABLED_TIME (1<<7)
282    
283     struct intel_fbdev;
284     struct intel_fbc_work;
285     @@ -1614,12 +1615,6 @@ struct i915_gpu_error {
286     unsigned long test_irq_rings;
287     };
288    
289     -enum modeset_restore {
290     - MODESET_ON_LID_OPEN,
291     - MODESET_DONE,
292     - MODESET_SUSPENDED,
293     -};
294     -
295     #define DP_AUX_A 0x40
296     #define DP_AUX_B 0x10
297     #define DP_AUX_C 0x20
298     @@ -2296,8 +2291,6 @@ struct drm_i915_private {
299    
300     unsigned long quirks;
301    
302     - enum modeset_restore modeset_restore;
303     - struct mutex modeset_restore_lock;
304     struct drm_atomic_state *modeset_restore_state;
305     struct drm_modeset_acquire_ctx reset_ctx;
306    
307     diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
308     index 3a4a581345c4..77085b9bcb30 100644
309     --- a/drivers/gpu/drm/i915/intel_ddi.c
310     +++ b/drivers/gpu/drm/i915/intel_ddi.c
311     @@ -1526,15 +1526,24 @@ void intel_ddi_enable_transcoder_func(const struct intel_crtc_state *crtc_state)
312     I915_WRITE(TRANS_DDI_FUNC_CTL(cpu_transcoder), temp);
313     }
314    
315     -void intel_ddi_disable_transcoder_func(struct drm_i915_private *dev_priv,
316     - enum transcoder cpu_transcoder)
317     +void intel_ddi_disable_transcoder_func(const struct intel_crtc_state *crtc_state)
318     {
319     + struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
320     + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
321     + enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
322     i915_reg_t reg = TRANS_DDI_FUNC_CTL(cpu_transcoder);
323     uint32_t val = I915_READ(reg);
324    
325     val &= ~(TRANS_DDI_FUNC_ENABLE | TRANS_DDI_PORT_MASK | TRANS_DDI_DP_VC_PAYLOAD_ALLOC);
326     val |= TRANS_DDI_PORT_NONE;
327     I915_WRITE(reg, val);
328     +
329     + if (dev_priv->quirks & QUIRK_INCREASE_DDI_DISABLED_TIME &&
330     + intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI)) {
331     + DRM_DEBUG_KMS("Quirk Increase DDI disabled time\n");
332     + /* Quirk time at 100ms for reliable operation */
333     + msleep(100);
334     + }
335     }
336    
337     bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector)
338     diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
339     index cf648c526e12..2006ab44fbf9 100644
340     --- a/drivers/gpu/drm/i915/intel_display.c
341     +++ b/drivers/gpu/drm/i915/intel_display.c
342     @@ -5653,7 +5653,7 @@ static void haswell_crtc_disable(struct intel_crtc_state *old_crtc_state,
343     intel_ddi_set_vc_payload_alloc(intel_crtc->config, false);
344    
345     if (!transcoder_is_dsi(cpu_transcoder))
346     - intel_ddi_disable_transcoder_func(dev_priv, cpu_transcoder);
347     + intel_ddi_disable_transcoder_func(old_crtc_state);
348    
349     if (INTEL_GEN(dev_priv) >= 9)
350     skylake_scaler_disable(intel_crtc);
351     @@ -14286,6 +14286,18 @@ static void quirk_increase_t12_delay(struct drm_device *dev)
352     DRM_INFO("Applying T12 delay quirk\n");
353     }
354    
355     +/*
356     + * GeminiLake NUC HDMI outputs require additional off time
357     + * this allows the onboard retimer to correctly sync to signal
358     + */
359     +static void quirk_increase_ddi_disabled_time(struct drm_device *dev)
360     +{
361     + struct drm_i915_private *dev_priv = to_i915(dev);
362     +
363     + dev_priv->quirks |= QUIRK_INCREASE_DDI_DISABLED_TIME;
364     + DRM_INFO("Applying Increase DDI Disabled quirk\n");
365     +}
366     +
367     struct intel_quirk {
368     int device;
369     int subsystem_vendor;
370     @@ -14372,6 +14384,13 @@ static struct intel_quirk intel_quirks[] = {
371    
372     /* Toshiba Satellite P50-C-18C */
373     { 0x191B, 0x1179, 0xF840, quirk_increase_t12_delay },
374     +
375     + /* GeminiLake NUC */
376     + { 0x3185, 0x8086, 0x2072, quirk_increase_ddi_disabled_time },
377     + { 0x3184, 0x8086, 0x2072, quirk_increase_ddi_disabled_time },
378     + /* ASRock ITX*/
379     + { 0x3185, 0x1849, 0x2212, quirk_increase_ddi_disabled_time },
380     + { 0x3184, 0x1849, 0x2212, quirk_increase_ddi_disabled_time },
381     };
382    
383     static void intel_init_quirks(struct drm_device *dev)
384     diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
385     index 589905aab185..3adb9c3b412e 100644
386     --- a/drivers/gpu/drm/i915/intel_drv.h
387     +++ b/drivers/gpu/drm/i915/intel_drv.h
388     @@ -1254,8 +1254,7 @@ void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port);
389     enum port intel_ddi_get_encoder_port(struct intel_encoder *intel_encoder);
390     bool intel_ddi_get_hw_state(struct intel_encoder *encoder, enum pipe *pipe);
391     void intel_ddi_enable_transcoder_func(const struct intel_crtc_state *crtc_state);
392     -void intel_ddi_disable_transcoder_func(struct drm_i915_private *dev_priv,
393     - enum transcoder cpu_transcoder);
394     +void intel_ddi_disable_transcoder_func(const struct intel_crtc_state *crtc_state);
395     void intel_ddi_enable_pipe_clock(const struct intel_crtc_state *crtc_state);
396     void intel_ddi_disable_pipe_clock(const struct intel_crtc_state *crtc_state);
397     struct intel_encoder *
398     diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
399     index dae4e22a2c3f..fe67e458b003 100644
400     --- a/drivers/gpu/drm/i915/intel_lvds.c
401     +++ b/drivers/gpu/drm/i915/intel_lvds.c
402     @@ -44,8 +44,6 @@
403     /* Private structure for the integrated LVDS support */
404     struct intel_lvds_connector {
405     struct intel_connector base;
406     -
407     - struct notifier_block lid_notifier;
408     };
409    
410     struct intel_lvds_pps {
411     @@ -440,26 +438,9 @@ static bool intel_lvds_compute_config(struct intel_encoder *intel_encoder,
412     return true;
413     }
414    
415     -/**
416     - * Detect the LVDS connection.
417     - *
418     - * Since LVDS doesn't have hotlug, we use the lid as a proxy. Open means
419     - * connected and closed means disconnected. We also send hotplug events as
420     - * needed, using lid status notification from the input layer.
421     - */
422     static enum drm_connector_status
423     intel_lvds_detect(struct drm_connector *connector, bool force)
424     {
425     - struct drm_i915_private *dev_priv = to_i915(connector->dev);
426     - enum drm_connector_status status;
427     -
428     - DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
429     - connector->base.id, connector->name);
430     -
431     - status = intel_panel_detect(dev_priv);
432     - if (status != connector_status_unknown)
433     - return status;
434     -
435     return connector_status_connected;
436     }
437    
438     @@ -484,117 +465,6 @@ static int intel_lvds_get_modes(struct drm_connector *connector)
439     return 1;
440     }
441    
442     -static int intel_no_modeset_on_lid_dmi_callback(const struct dmi_system_id *id)
443     -{
444     - DRM_INFO("Skipping forced modeset for %s\n", id->ident);
445     - return 1;
446     -}
447     -
448     -/* The GPU hangs up on these systems if modeset is performed on LID open */
449     -static const struct dmi_system_id intel_no_modeset_on_lid[] = {
450     - {
451     - .callback = intel_no_modeset_on_lid_dmi_callback,
452     - .ident = "Toshiba Tecra A11",
453     - .matches = {
454     - DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
455     - DMI_MATCH(DMI_PRODUCT_NAME, "TECRA A11"),
456     - },
457     - },
458     -
459     - { } /* terminating entry */
460     -};
461     -
462     -/*
463     - * Lid events. Note the use of 'modeset':
464     - * - we set it to MODESET_ON_LID_OPEN on lid close,
465     - * and set it to MODESET_DONE on open
466     - * - we use it as a "only once" bit (ie we ignore
467     - * duplicate events where it was already properly set)
468     - * - the suspend/resume paths will set it to
469     - * MODESET_SUSPENDED and ignore the lid open event,
470     - * because they restore the mode ("lid open").
471     - */
472     -static int intel_lid_notify(struct notifier_block *nb, unsigned long val,
473     - void *unused)
474     -{
475     - struct intel_lvds_connector *lvds_connector =
476     - container_of(nb, struct intel_lvds_connector, lid_notifier);
477     - struct drm_connector *connector = &lvds_connector->base.base;
478     - struct drm_device *dev = connector->dev;
479     - struct drm_i915_private *dev_priv = to_i915(dev);
480     -
481     - if (dev->switch_power_state != DRM_SWITCH_POWER_ON)
482     - return NOTIFY_OK;
483     -
484     - mutex_lock(&dev_priv->modeset_restore_lock);
485     - if (dev_priv->modeset_restore == MODESET_SUSPENDED)
486     - goto exit;
487     - /*
488     - * check and update the status of LVDS connector after receiving
489     - * the LID nofication event.
490     - */
491     - connector->status = connector->funcs->detect(connector, false);
492     -
493     - /* Don't force modeset on machines where it causes a GPU lockup */
494     - if (dmi_check_system(intel_no_modeset_on_lid))
495     - goto exit;
496     - if (!acpi_lid_open()) {
497     - /* do modeset on next lid open event */
498     - dev_priv->modeset_restore = MODESET_ON_LID_OPEN;
499     - goto exit;
500     - }
501     -
502     - if (dev_priv->modeset_restore == MODESET_DONE)
503     - goto exit;
504     -
505     - /*
506     - * Some old platform's BIOS love to wreak havoc while the lid is closed.
507     - * We try to detect this here and undo any damage. The split for PCH
508     - * platforms is rather conservative and a bit arbitrary expect that on
509     - * those platforms VGA disabling requires actual legacy VGA I/O access,
510     - * and as part of the cleanup in the hw state restore we also redisable
511     - * the vga plane.
512     - */
513     - if (!HAS_PCH_SPLIT(dev_priv))
514     - intel_display_resume(dev);
515     -
516     - dev_priv->modeset_restore = MODESET_DONE;
517     -
518     -exit:
519     - mutex_unlock(&dev_priv->modeset_restore_lock);
520     - return NOTIFY_OK;
521     -}
522     -
523     -static int
524     -intel_lvds_connector_register(struct drm_connector *connector)
525     -{
526     - struct intel_lvds_connector *lvds = to_lvds_connector(connector);
527     - int ret;
528     -
529     - ret = intel_connector_register(connector);
530     - if (ret)
531     - return ret;
532     -
533     - lvds->lid_notifier.notifier_call = intel_lid_notify;
534     - if (acpi_lid_notifier_register(&lvds->lid_notifier)) {
535     - DRM_DEBUG_KMS("lid notifier registration failed\n");
536     - lvds->lid_notifier.notifier_call = NULL;
537     - }
538     -
539     - return 0;
540     -}
541     -
542     -static void
543     -intel_lvds_connector_unregister(struct drm_connector *connector)
544     -{
545     - struct intel_lvds_connector *lvds = to_lvds_connector(connector);
546     -
547     - if (lvds->lid_notifier.notifier_call)
548     - acpi_lid_notifier_unregister(&lvds->lid_notifier);
549     -
550     - intel_connector_unregister(connector);
551     -}
552     -
553     /**
554     * intel_lvds_destroy - unregister and free LVDS structures
555     * @connector: connector to free
556     @@ -627,8 +497,8 @@ static const struct drm_connector_funcs intel_lvds_connector_funcs = {
557     .fill_modes = drm_helper_probe_single_connector_modes,
558     .atomic_get_property = intel_digital_connector_atomic_get_property,
559     .atomic_set_property = intel_digital_connector_atomic_set_property,
560     - .late_register = intel_lvds_connector_register,
561     - .early_unregister = intel_lvds_connector_unregister,
562     + .late_register = intel_connector_register,
563     + .early_unregister = intel_connector_unregister,
564     .destroy = intel_lvds_destroy,
565     .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
566     .atomic_duplicate_state = intel_digital_connector_duplicate_state,
567     @@ -1091,8 +961,6 @@ void intel_lvds_init(struct drm_i915_private *dev_priv)
568     * 2) check for VBT data
569     * 3) check to see if LVDS is already on
570     * if none of the above, no panel
571     - * 4) make sure lid is open
572     - * if closed, act like it's not there for now
573     */
574    
575     /*
576     diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
577     index 672b0be41d44..a306493e2e97 100644
578     --- a/drivers/hid/hid-core.c
579     +++ b/drivers/hid/hid-core.c
580     @@ -1964,6 +1964,9 @@ static const struct hid_device_id hid_have_special_driver[] = {
581     { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO) },
582     { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_JIS) },
583     { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_ANSI) },
584     + { HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_ANSI) },
585     + { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_NUMPAD_ANSI) },
586     + { HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_NUMPAD_ANSI) },
587     { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
588     { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
589     #endif
590     diff --git a/drivers/hwtracing/intel_th/pci.c b/drivers/hwtracing/intel_th/pci.c
591     index c2a2ce8ee541..ef699477d94a 100644
592     --- a/drivers/hwtracing/intel_th/pci.c
593     +++ b/drivers/hwtracing/intel_th/pci.c
594     @@ -168,6 +168,11 @@ static const struct pci_device_id intel_th_pci_id_table[] = {
595     PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x18e1),
596     .driver_data = (kernel_ulong_t)&intel_th_2x,
597     },
598     + {
599     + /* Ice Lake PCH */
600     + PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x34a6),
601     + .driver_data = (kernel_ulong_t)&intel_th_2x,
602     + },
603     { 0 },
604     };
605    
606     diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c
607     index 15d764afec3b..7f044df1ea07 100644
608     --- a/drivers/i2c/busses/i2c-rcar.c
609     +++ b/drivers/i2c/busses/i2c-rcar.c
610     @@ -32,6 +32,7 @@
611     #include <linux/of_device.h>
612     #include <linux/platform_device.h>
613     #include <linux/pm_runtime.h>
614     +#include <linux/reset.h>
615     #include <linux/slab.h>
616    
617     /* register offsets */
618     @@ -111,8 +112,9 @@
619     #define ID_ARBLOST (1 << 3)
620     #define ID_NACK (1 << 4)
621     /* persistent flags */
622     +#define ID_P_NO_RXDMA (1 << 30) /* HW forbids RXDMA sometimes */
623     #define ID_P_PM_BLOCKED (1 << 31)
624     -#define ID_P_MASK ID_P_PM_BLOCKED
625     +#define ID_P_MASK (ID_P_PM_BLOCKED | ID_P_NO_RXDMA)
626    
627     enum rcar_i2c_type {
628     I2C_RCAR_GEN1,
629     @@ -140,6 +142,8 @@ struct rcar_i2c_priv {
630     struct dma_chan *dma_rx;
631     struct scatterlist sg;
632     enum dma_data_direction dma_direction;
633     +
634     + struct reset_control *rstc;
635     };
636    
637     #define rcar_i2c_priv_to_dev(p) ((p)->adap.dev.parent)
638     @@ -321,6 +325,11 @@ static void rcar_i2c_dma_unmap(struct rcar_i2c_priv *priv)
639     dma_unmap_single(chan->device->dev, sg_dma_address(&priv->sg),
640     sg_dma_len(&priv->sg), priv->dma_direction);
641    
642     + /* Gen3 can only do one RXDMA per transfer and we just completed it */
643     + if (priv->devtype == I2C_RCAR_GEN3 &&
644     + priv->dma_direction == DMA_FROM_DEVICE)
645     + priv->flags |= ID_P_NO_RXDMA;
646     +
647     priv->dma_direction = DMA_NONE;
648     }
649    
650     @@ -358,8 +367,9 @@ static void rcar_i2c_dma(struct rcar_i2c_priv *priv)
651     unsigned char *buf;
652     int len;
653    
654     - /* Do not use DMA if it's not available or for messages < 8 bytes */
655     - if (IS_ERR(chan) || msg->len < 8)
656     + /* Do various checks to see if DMA is feasible at all */
657     + if (IS_ERR(chan) || msg->len < 8 ||
658     + (read && priv->flags & ID_P_NO_RXDMA))
659     return;
660    
661     if (read) {
662     @@ -688,6 +698,25 @@ static void rcar_i2c_release_dma(struct rcar_i2c_priv *priv)
663     }
664     }
665    
666     +/* I2C is a special case, we need to poll the status of a reset */
667     +static int rcar_i2c_do_reset(struct rcar_i2c_priv *priv)
668     +{
669     + int i, ret;
670     +
671     + ret = reset_control_reset(priv->rstc);
672     + if (ret)
673     + return ret;
674     +
675     + for (i = 0; i < LOOP_TIMEOUT; i++) {
676     + ret = reset_control_status(priv->rstc);
677     + if (ret == 0)
678     + return 0;
679     + udelay(1);
680     + }
681     +
682     + return -ETIMEDOUT;
683     +}
684     +
685     static int rcar_i2c_master_xfer(struct i2c_adapter *adap,
686     struct i2c_msg *msgs,
687     int num)
688     @@ -699,6 +728,16 @@ static int rcar_i2c_master_xfer(struct i2c_adapter *adap,
689    
690     pm_runtime_get_sync(dev);
691    
692     + /* Gen3 needs a reset before allowing RXDMA once */
693     + if (priv->devtype == I2C_RCAR_GEN3) {
694     + priv->flags |= ID_P_NO_RXDMA;
695     + if (!IS_ERR(priv->rstc)) {
696     + ret = rcar_i2c_do_reset(priv);
697     + if (ret == 0)
698     + priv->flags &= ~ID_P_NO_RXDMA;
699     + }
700     + }
701     +
702     rcar_i2c_init(priv);
703    
704     ret = rcar_i2c_bus_barrier(priv);
705     @@ -868,6 +907,15 @@ static int rcar_i2c_probe(struct platform_device *pdev)
706     if (ret < 0)
707     goto out_pm_put;
708    
709     + if (priv->devtype == I2C_RCAR_GEN3) {
710     + priv->rstc = devm_reset_control_get_exclusive(&pdev->dev, NULL);
711     + if (!IS_ERR(priv->rstc)) {
712     + ret = reset_control_status(priv->rstc);
713     + if (ret < 0)
714     + priv->rstc = ERR_PTR(-ENOTSUPP);
715     + }
716     + }
717     +
718     /* Stay always active when multi-master to keep arbitration working */
719     if (of_property_read_bool(dev->of_node, "multi-master"))
720     priv->flags |= ID_P_PM_BLOCKED;
721     diff --git a/drivers/infiniband/hw/hfi1/chip.c b/drivers/infiniband/hw/hfi1/chip.c
722     index 33cf1734c4e5..f9faacce9250 100644
723     --- a/drivers/infiniband/hw/hfi1/chip.c
724     +++ b/drivers/infiniband/hw/hfi1/chip.c
725     @@ -6722,6 +6722,7 @@ void start_freeze_handling(struct hfi1_pportdata *ppd, int flags)
726     struct hfi1_devdata *dd = ppd->dd;
727     struct send_context *sc;
728     int i;
729     + int sc_flags;
730    
731     if (flags & FREEZE_SELF)
732     write_csr(dd, CCE_CTRL, CCE_CTRL_SPC_FREEZE_SMASK);
733     @@ -6732,11 +6733,13 @@ void start_freeze_handling(struct hfi1_pportdata *ppd, int flags)
734     /* notify all SDMA engines that they are going into a freeze */
735     sdma_freeze_notify(dd, !!(flags & FREEZE_LINK_DOWN));
736    
737     + sc_flags = SCF_FROZEN | SCF_HALTED | (flags & FREEZE_LINK_DOWN ?
738     + SCF_LINK_DOWN : 0);
739     /* do halt pre-handling on all enabled send contexts */
740     for (i = 0; i < dd->num_send_contexts; i++) {
741     sc = dd->send_contexts[i].sc;
742     if (sc && (sc->flags & SCF_ENABLED))
743     - sc_stop(sc, SCF_FROZEN | SCF_HALTED);
744     + sc_stop(sc, sc_flags);
745     }
746    
747     /* Send context are frozen. Notify user space */
748     @@ -10646,6 +10649,8 @@ int set_link_state(struct hfi1_pportdata *ppd, u32 state)
749     add_rcvctrl(dd, RCV_CTRL_RCV_PORT_ENABLE_SMASK);
750    
751     handle_linkup_change(dd, 1);
752     + pio_kernel_linkup(dd);
753     +
754     ppd->host_link_state = HLS_UP_INIT;
755     break;
756     case HLS_UP_ARMED:
757     diff --git a/drivers/infiniband/hw/hfi1/pio.c b/drivers/infiniband/hw/hfi1/pio.c
758     index 19a8e6052820..07bf282fd8aa 100644
759     --- a/drivers/infiniband/hw/hfi1/pio.c
760     +++ b/drivers/infiniband/hw/hfi1/pio.c
761     @@ -942,20 +942,18 @@ void sc_free(struct send_context *sc)
762     void sc_disable(struct send_context *sc)
763     {
764     u64 reg;
765     - unsigned long flags;
766     struct pio_buf *pbuf;
767    
768     if (!sc)
769     return;
770    
771     /* do all steps, even if already disabled */
772     - spin_lock_irqsave(&sc->alloc_lock, flags);
773     + spin_lock_irq(&sc->alloc_lock);
774     reg = read_kctxt_csr(sc->dd, sc->hw_context, SC(CTRL));
775     reg &= ~SC(CTRL_CTXT_ENABLE_SMASK);
776     sc->flags &= ~SCF_ENABLED;
777     sc_wait_for_packet_egress(sc, 1);
778     write_kctxt_csr(sc->dd, sc->hw_context, SC(CTRL), reg);
779     - spin_unlock_irqrestore(&sc->alloc_lock, flags);
780    
781     /*
782     * Flush any waiters. Once the context is disabled,
783     @@ -965,7 +963,7 @@ void sc_disable(struct send_context *sc)
784     * proceed with the flush.
785     */
786     udelay(1);
787     - spin_lock_irqsave(&sc->release_lock, flags);
788     + spin_lock(&sc->release_lock);
789     if (sc->sr) { /* this context has a shadow ring */
790     while (sc->sr_tail != sc->sr_head) {
791     pbuf = &sc->sr[sc->sr_tail].pbuf;
792     @@ -976,7 +974,8 @@ void sc_disable(struct send_context *sc)
793     sc->sr_tail = 0;
794     }
795     }
796     - spin_unlock_irqrestore(&sc->release_lock, flags);
797     + spin_unlock(&sc->release_lock);
798     + spin_unlock_irq(&sc->alloc_lock);
799     }
800    
801     /* return SendEgressCtxtStatus.PacketOccupancy */
802     @@ -1199,11 +1198,39 @@ void pio_kernel_unfreeze(struct hfi1_devdata *dd)
803     sc = dd->send_contexts[i].sc;
804     if (!sc || !(sc->flags & SCF_FROZEN) || sc->type == SC_USER)
805     continue;
806     + if (sc->flags & SCF_LINK_DOWN)
807     + continue;
808    
809     sc_enable(sc); /* will clear the sc frozen flag */
810     }
811     }
812    
813     +/**
814     + * pio_kernel_linkup() - Re-enable send contexts after linkup event
815     + * @dd: valid devive data
816     + *
817     + * When the link goes down, the freeze path is taken. However, a link down
818     + * event is different from a freeze because if the send context is re-enabled
819     + * whowever is sending data will start sending data again, which will hang
820     + * any QP that is sending data.
821     + *
822     + * The freeze path now looks at the type of event that occurs and takes this
823     + * path for link down event.
824     + */
825     +void pio_kernel_linkup(struct hfi1_devdata *dd)
826     +{
827     + struct send_context *sc;
828     + int i;
829     +
830     + for (i = 0; i < dd->num_send_contexts; i++) {
831     + sc = dd->send_contexts[i].sc;
832     + if (!sc || !(sc->flags & SCF_LINK_DOWN) || sc->type == SC_USER)
833     + continue;
834     +
835     + sc_enable(sc); /* will clear the sc link down flag */
836     + }
837     +}
838     +
839     /*
840     * Wait for the SendPioInitCtxt.PioInitInProgress bit to clear.
841     * Returns:
842     @@ -1403,11 +1430,10 @@ void sc_stop(struct send_context *sc, int flag)
843     {
844     unsigned long flags;
845    
846     - /* mark the context */
847     - sc->flags |= flag;
848     -
849     /* stop buffer allocations */
850     spin_lock_irqsave(&sc->alloc_lock, flags);
851     + /* mark the context */
852     + sc->flags |= flag;
853     sc->flags &= ~SCF_ENABLED;
854     spin_unlock_irqrestore(&sc->alloc_lock, flags);
855     wake_up(&sc->halt_wait);
856     diff --git a/drivers/infiniband/hw/hfi1/pio.h b/drivers/infiniband/hw/hfi1/pio.h
857     index 99ca5edb0b43..c7c4e6e5d317 100644
858     --- a/drivers/infiniband/hw/hfi1/pio.h
859     +++ b/drivers/infiniband/hw/hfi1/pio.h
860     @@ -145,6 +145,7 @@ struct send_context {
861     #define SCF_IN_FREE 0x02
862     #define SCF_HALTED 0x04
863     #define SCF_FROZEN 0x08
864     +#define SCF_LINK_DOWN 0x10
865    
866     struct send_context_info {
867     struct send_context *sc; /* allocated working context */
868     @@ -312,6 +313,7 @@ void set_pio_integrity(struct send_context *sc);
869     void pio_reset_all(struct hfi1_devdata *dd);
870     void pio_freeze(struct hfi1_devdata *dd);
871     void pio_kernel_unfreeze(struct hfi1_devdata *dd);
872     +void pio_kernel_linkup(struct hfi1_devdata *dd);
873    
874     /* global PIO send control operations */
875     #define PSC_GLOBAL_ENABLE 0
876     diff --git a/drivers/input/keyboard/atakbd.c b/drivers/input/keyboard/atakbd.c
877     index f1235831283d..fdeda0b0fbd6 100644
878     --- a/drivers/input/keyboard/atakbd.c
879     +++ b/drivers/input/keyboard/atakbd.c
880     @@ -79,8 +79,7 @@ MODULE_LICENSE("GPL");
881     */
882    
883    
884     -static unsigned char atakbd_keycode[0x72] = { /* American layout */
885     - [0] = KEY_GRAVE,
886     +static unsigned char atakbd_keycode[0x73] = { /* American layout */
887     [1] = KEY_ESC,
888     [2] = KEY_1,
889     [3] = KEY_2,
890     @@ -121,9 +120,9 @@ static unsigned char atakbd_keycode[0x72] = { /* American layout */
891     [38] = KEY_L,
892     [39] = KEY_SEMICOLON,
893     [40] = KEY_APOSTROPHE,
894     - [41] = KEY_BACKSLASH, /* FIXME, '#' */
895     + [41] = KEY_GRAVE,
896     [42] = KEY_LEFTSHIFT,
897     - [43] = KEY_GRAVE, /* FIXME: '~' */
898     + [43] = KEY_BACKSLASH,
899     [44] = KEY_Z,
900     [45] = KEY_X,
901     [46] = KEY_C,
902     @@ -149,45 +148,34 @@ static unsigned char atakbd_keycode[0x72] = { /* American layout */
903     [66] = KEY_F8,
904     [67] = KEY_F9,
905     [68] = KEY_F10,
906     - [69] = KEY_ESC,
907     - [70] = KEY_DELETE,
908     - [71] = KEY_KP7,
909     - [72] = KEY_KP8,
910     - [73] = KEY_KP9,
911     + [71] = KEY_HOME,
912     + [72] = KEY_UP,
913     [74] = KEY_KPMINUS,
914     - [75] = KEY_KP4,
915     - [76] = KEY_KP5,
916     - [77] = KEY_KP6,
917     + [75] = KEY_LEFT,
918     + [77] = KEY_RIGHT,
919     [78] = KEY_KPPLUS,
920     - [79] = KEY_KP1,
921     - [80] = KEY_KP2,
922     - [81] = KEY_KP3,
923     - [82] = KEY_KP0,
924     - [83] = KEY_KPDOT,
925     - [90] = KEY_KPLEFTPAREN,
926     - [91] = KEY_KPRIGHTPAREN,
927     - [92] = KEY_KPASTERISK, /* FIXME */
928     - [93] = KEY_KPASTERISK,
929     - [94] = KEY_KPPLUS,
930     - [95] = KEY_HELP,
931     + [80] = KEY_DOWN,
932     + [82] = KEY_INSERT,
933     + [83] = KEY_DELETE,
934     [96] = KEY_102ND,
935     - [97] = KEY_KPASTERISK, /* FIXME */
936     - [98] = KEY_KPSLASH,
937     + [97] = KEY_UNDO,
938     + [98] = KEY_HELP,
939     [99] = KEY_KPLEFTPAREN,
940     [100] = KEY_KPRIGHTPAREN,
941     [101] = KEY_KPSLASH,
942     [102] = KEY_KPASTERISK,
943     - [103] = KEY_UP,
944     - [104] = KEY_KPASTERISK, /* FIXME */
945     - [105] = KEY_LEFT,
946     - [106] = KEY_RIGHT,
947     - [107] = KEY_KPASTERISK, /* FIXME */
948     - [108] = KEY_DOWN,
949     - [109] = KEY_KPASTERISK, /* FIXME */
950     - [110] = KEY_KPASTERISK, /* FIXME */
951     - [111] = KEY_KPASTERISK, /* FIXME */
952     - [112] = KEY_KPASTERISK, /* FIXME */
953     - [113] = KEY_KPASTERISK /* FIXME */
954     + [103] = KEY_KP7,
955     + [104] = KEY_KP8,
956     + [105] = KEY_KP9,
957     + [106] = KEY_KP4,
958     + [107] = KEY_KP5,
959     + [108] = KEY_KP6,
960     + [109] = KEY_KP1,
961     + [110] = KEY_KP2,
962     + [111] = KEY_KP3,
963     + [112] = KEY_KP0,
964     + [113] = KEY_KPDOT,
965     + [114] = KEY_KPENTER,
966     };
967    
968     static struct input_dev *atakbd_dev;
969     @@ -195,21 +183,15 @@ static struct input_dev *atakbd_dev;
970     static void atakbd_interrupt(unsigned char scancode, char down)
971     {
972    
973     - if (scancode < 0x72) { /* scancodes < 0xf2 are keys */
974     + if (scancode < 0x73) { /* scancodes < 0xf3 are keys */
975    
976     // report raw events here?
977    
978     scancode = atakbd_keycode[scancode];
979    
980     - if (scancode == KEY_CAPSLOCK) { /* CapsLock is a toggle switch key on Amiga */
981     - input_report_key(atakbd_dev, scancode, 1);
982     - input_report_key(atakbd_dev, scancode, 0);
983     - input_sync(atakbd_dev);
984     - } else {
985     - input_report_key(atakbd_dev, scancode, down);
986     - input_sync(atakbd_dev);
987     - }
988     - } else /* scancodes >= 0xf2 are mouse data, most likely */
989     + input_report_key(atakbd_dev, scancode, down);
990     + input_sync(atakbd_dev);
991     + } else /* scancodes >= 0xf3 are mouse data, most likely */
992     printk(KERN_INFO "atakbd: unhandled scancode %x\n", scancode);
993    
994     return;
995     diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
996     index 9137030423cd..efa6cd2500b9 100644
997     --- a/drivers/iommu/amd_iommu.c
998     +++ b/drivers/iommu/amd_iommu.c
999     @@ -253,7 +253,13 @@ static u16 get_alias(struct device *dev)
1000    
1001     /* The callers make sure that get_device_id() does not fail here */
1002     devid = get_device_id(dev);
1003     +
1004     + /* For ACPI HID devices, we simply return the devid as such */
1005     + if (!dev_is_pci(dev))
1006     + return devid;
1007     +
1008     ivrs_alias = amd_iommu_alias_table[devid];
1009     +
1010     pci_for_each_dma_alias(pdev, __last_alias, &pci_alias);
1011    
1012     if (ivrs_alias == pci_alias)
1013     diff --git a/drivers/media/usb/dvb-usb-v2/af9035.c b/drivers/media/usb/dvb-usb-v2/af9035.c
1014     index 666d319d3d1a..1f6c1eefe389 100644
1015     --- a/drivers/media/usb/dvb-usb-v2/af9035.c
1016     +++ b/drivers/media/usb/dvb-usb-v2/af9035.c
1017     @@ -402,8 +402,10 @@ static int af9035_i2c_master_xfer(struct i2c_adapter *adap,
1018     if (msg[0].addr == state->af9033_i2c_addr[1])
1019     reg |= 0x100000;
1020    
1021     - ret = af9035_wr_regs(d, reg, &msg[0].buf[3],
1022     - msg[0].len - 3);
1023     + ret = (msg[0].len >= 3) ? af9035_wr_regs(d, reg,
1024     + &msg[0].buf[3],
1025     + msg[0].len - 3)
1026     + : -EOPNOTSUPP;
1027     } else {
1028     /* I2C write */
1029     u8 buf[MAX_XFER_SIZE];
1030     diff --git a/drivers/net/ethernet/ibm/emac/core.c b/drivers/net/ethernet/ibm/emac/core.c
1031     index 7feff2450ed6..d1da8f05ef85 100644
1032     --- a/drivers/net/ethernet/ibm/emac/core.c
1033     +++ b/drivers/net/ethernet/ibm/emac/core.c
1034     @@ -2671,12 +2671,17 @@ static int emac_init_phy(struct emac_instance *dev)
1035     if (of_phy_is_fixed_link(np)) {
1036     int res = emac_dt_mdio_probe(dev);
1037    
1038     - if (!res) {
1039     - res = of_phy_register_fixed_link(np);
1040     - if (res)
1041     - mdiobus_unregister(dev->mii_bus);
1042     + if (res)
1043     + return res;
1044     +
1045     + res = of_phy_register_fixed_link(np);
1046     + dev->phy_dev = of_phy_find_device(np);
1047     + if (res || !dev->phy_dev) {
1048     + mdiobus_unregister(dev->mii_bus);
1049     + return res ? res : -EINVAL;
1050     }
1051     - return res;
1052     + emac_adjust_link(dev->ndev);
1053     + put_device(&dev->phy_dev->mdio.dev);
1054     }
1055     return 0;
1056     }
1057     diff --git a/drivers/net/ethernet/mellanox/mlx4/eq.c b/drivers/net/ethernet/mellanox/mlx4/eq.c
1058     index 6f57c052053e..050dc213e8db 100644
1059     --- a/drivers/net/ethernet/mellanox/mlx4/eq.c
1060     +++ b/drivers/net/ethernet/mellanox/mlx4/eq.c
1061     @@ -240,7 +240,8 @@ static void mlx4_set_eq_affinity_hint(struct mlx4_priv *priv, int vec)
1062     struct mlx4_dev *dev = &priv->dev;
1063     struct mlx4_eq *eq = &priv->eq_table.eq[vec];
1064    
1065     - if (!eq->affinity_mask || cpumask_empty(eq->affinity_mask))
1066     + if (!cpumask_available(eq->affinity_mask) ||
1067     + cpumask_empty(eq->affinity_mask))
1068     return;
1069    
1070     hint_err = irq_set_affinity_hint(eq->irq, eq->affinity_mask);
1071     diff --git a/drivers/net/ethernet/renesas/ravb.h b/drivers/net/ethernet/renesas/ravb.h
1072     index 96a27b00c90e..897bd33c2c50 100644
1073     --- a/drivers/net/ethernet/renesas/ravb.h
1074     +++ b/drivers/net/ethernet/renesas/ravb.h
1075     @@ -431,6 +431,7 @@ enum EIS_BIT {
1076     EIS_CULF1 = 0x00000080,
1077     EIS_TFFF = 0x00000100,
1078     EIS_QFS = 0x00010000,
1079     + EIS_RESERVED = (GENMASK(31, 17) | GENMASK(15, 11)),
1080     };
1081    
1082     /* RIC0 */
1083     @@ -475,6 +476,7 @@ enum RIS0_BIT {
1084     RIS0_FRF15 = 0x00008000,
1085     RIS0_FRF16 = 0x00010000,
1086     RIS0_FRF17 = 0x00020000,
1087     + RIS0_RESERVED = GENMASK(31, 18),
1088     };
1089    
1090     /* RIC1 */
1091     @@ -531,6 +533,7 @@ enum RIS2_BIT {
1092     RIS2_QFF16 = 0x00010000,
1093     RIS2_QFF17 = 0x00020000,
1094     RIS2_RFFF = 0x80000000,
1095     + RIS2_RESERVED = GENMASK(30, 18),
1096     };
1097    
1098     /* TIC */
1099     @@ -547,6 +550,7 @@ enum TIS_BIT {
1100     TIS_FTF1 = 0x00000002, /* Undocumented? */
1101     TIS_TFUF = 0x00000100,
1102     TIS_TFWF = 0x00000200,
1103     + TIS_RESERVED = (GENMASK(31, 20) | GENMASK(15, 12) | GENMASK(7, 4))
1104     };
1105    
1106     /* ISS */
1107     @@ -620,6 +624,7 @@ enum GIC_BIT {
1108     enum GIS_BIT {
1109     GIS_PTCF = 0x00000001, /* Undocumented? */
1110     GIS_PTMF = 0x00000004,
1111     + GIS_RESERVED = GENMASK(15, 10),
1112     };
1113    
1114     /* GIE (R-Car Gen3 only) */
1115     diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
1116     index e87a779bfcfe..ff3a293ffe36 100644
1117     --- a/drivers/net/ethernet/renesas/ravb_main.c
1118     +++ b/drivers/net/ethernet/renesas/ravb_main.c
1119     @@ -721,10 +721,11 @@ static void ravb_error_interrupt(struct net_device *ndev)
1120     u32 eis, ris2;
1121    
1122     eis = ravb_read(ndev, EIS);
1123     - ravb_write(ndev, ~EIS_QFS, EIS);
1124     + ravb_write(ndev, ~(EIS_QFS | EIS_RESERVED), EIS);
1125     if (eis & EIS_QFS) {
1126     ris2 = ravb_read(ndev, RIS2);
1127     - ravb_write(ndev, ~(RIS2_QFF0 | RIS2_RFFF), RIS2);
1128     + ravb_write(ndev, ~(RIS2_QFF0 | RIS2_RFFF | RIS2_RESERVED),
1129     + RIS2);
1130    
1131     /* Receive Descriptor Empty int */
1132     if (ris2 & RIS2_QFF0)
1133     @@ -777,7 +778,7 @@ static bool ravb_timestamp_interrupt(struct net_device *ndev)
1134     u32 tis = ravb_read(ndev, TIS);
1135    
1136     if (tis & TIS_TFUF) {
1137     - ravb_write(ndev, ~TIS_TFUF, TIS);
1138     + ravb_write(ndev, ~(TIS_TFUF | TIS_RESERVED), TIS);
1139     ravb_get_tx_tstamp(ndev);
1140     return true;
1141     }
1142     @@ -912,7 +913,7 @@ static int ravb_poll(struct napi_struct *napi, int budget)
1143     /* Processing RX Descriptor Ring */
1144     if (ris0 & mask) {
1145     /* Clear RX interrupt */
1146     - ravb_write(ndev, ~mask, RIS0);
1147     + ravb_write(ndev, ~(mask | RIS0_RESERVED), RIS0);
1148     if (ravb_rx(ndev, &quota, q))
1149     goto out;
1150     }
1151     @@ -920,7 +921,7 @@ static int ravb_poll(struct napi_struct *napi, int budget)
1152     if (tis & mask) {
1153     spin_lock_irqsave(&priv->lock, flags);
1154     /* Clear TX interrupt */
1155     - ravb_write(ndev, ~mask, TIS);
1156     + ravb_write(ndev, ~(mask | TIS_RESERVED), TIS);
1157     ravb_tx_free(ndev, q, true);
1158     netif_wake_subqueue(ndev, q);
1159     mmiowb();
1160     diff --git a/drivers/net/ethernet/renesas/ravb_ptp.c b/drivers/net/ethernet/renesas/ravb_ptp.c
1161     index eede70ec37f8..9e3222fd69f9 100644
1162     --- a/drivers/net/ethernet/renesas/ravb_ptp.c
1163     +++ b/drivers/net/ethernet/renesas/ravb_ptp.c
1164     @@ -319,7 +319,7 @@ void ravb_ptp_interrupt(struct net_device *ndev)
1165     }
1166     }
1167    
1168     - ravb_write(ndev, ~gis, GIS);
1169     + ravb_write(ndev, ~(gis | GIS_RESERVED), GIS);
1170     }
1171    
1172     void ravb_ptp_init(struct net_device *ndev, struct platform_device *pdev)
1173     diff --git a/drivers/pci/dwc/pcie-designware.c b/drivers/pci/dwc/pcie-designware.c
1174     index 88abdddee2ad..a06ad2c65174 100644
1175     --- a/drivers/pci/dwc/pcie-designware.c
1176     +++ b/drivers/pci/dwc/pcie-designware.c
1177     @@ -138,7 +138,7 @@ static void dw_pcie_prog_outbound_atu_unroll(struct dw_pcie *pci, int index,
1178     if (val & PCIE_ATU_ENABLE)
1179     return;
1180    
1181     - usleep_range(LINK_WAIT_IATU_MIN, LINK_WAIT_IATU_MAX);
1182     + mdelay(LINK_WAIT_IATU);
1183     }
1184     dev_err(pci->dev, "outbound iATU is not being enabled\n");
1185     }
1186     @@ -181,7 +181,7 @@ void dw_pcie_prog_outbound_atu(struct dw_pcie *pci, int index, int type,
1187     if (val & PCIE_ATU_ENABLE)
1188     return;
1189    
1190     - usleep_range(LINK_WAIT_IATU_MIN, LINK_WAIT_IATU_MAX);
1191     + mdelay(LINK_WAIT_IATU);
1192     }
1193     dev_err(pci->dev, "outbound iATU is not being enabled\n");
1194     }
1195     @@ -239,7 +239,7 @@ static int dw_pcie_prog_inbound_atu_unroll(struct dw_pcie *pci, int index,
1196     if (val & PCIE_ATU_ENABLE)
1197     return 0;
1198    
1199     - usleep_range(LINK_WAIT_IATU_MIN, LINK_WAIT_IATU_MAX);
1200     + mdelay(LINK_WAIT_IATU);
1201     }
1202     dev_err(pci->dev, "inbound iATU is not being enabled\n");
1203    
1204     @@ -285,7 +285,7 @@ int dw_pcie_prog_inbound_atu(struct dw_pcie *pci, int index, int bar,
1205     if (val & PCIE_ATU_ENABLE)
1206     return 0;
1207    
1208     - usleep_range(LINK_WAIT_IATU_MIN, LINK_WAIT_IATU_MAX);
1209     + mdelay(LINK_WAIT_IATU);
1210     }
1211     dev_err(pci->dev, "inbound iATU is not being enabled\n");
1212    
1213     diff --git a/drivers/pci/dwc/pcie-designware.h b/drivers/pci/dwc/pcie-designware.h
1214     index cb493bcae8b4..3551dd607b90 100644
1215     --- a/drivers/pci/dwc/pcie-designware.h
1216     +++ b/drivers/pci/dwc/pcie-designware.h
1217     @@ -28,8 +28,7 @@
1218    
1219     /* Parameters for the waiting for iATU enabled routine */
1220     #define LINK_WAIT_MAX_IATU_RETRIES 5
1221     -#define LINK_WAIT_IATU_MIN 9000
1222     -#define LINK_WAIT_IATU_MAX 10000
1223     +#define LINK_WAIT_IATU 9
1224    
1225     /* Synopsys-specific PCIe configuration registers */
1226     #define PCIE_PORT_LINK_CONTROL 0x710
1227     diff --git a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c
1228     index 2799a6b08f73..25d2741cdf96 100644
1229     --- a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c
1230     +++ b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c
1231     @@ -3465,11 +3465,10 @@ static int ibmvscsis_probe(struct vio_dev *vdev,
1232     vscsi->dds.window[LOCAL].liobn,
1233     vscsi->dds.window[REMOTE].liobn);
1234    
1235     - strcpy(vscsi->eye, "VSCSI ");
1236     - strncat(vscsi->eye, vdev->name, MAX_EYE);
1237     + snprintf(vscsi->eye, sizeof(vscsi->eye), "VSCSI %s", vdev->name);
1238    
1239     vscsi->dds.unit_id = vdev->unit_address;
1240     - strncpy(vscsi->dds.partition_name, partition_name,
1241     + strscpy(vscsi->dds.partition_name, partition_name,
1242     sizeof(vscsi->dds.partition_name));
1243     vscsi->dds.partition_num = partition_number;
1244    
1245     diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
1246     index f838bd73befa..35d54ee1c5c7 100644
1247     --- a/drivers/scsi/ipr.c
1248     +++ b/drivers/scsi/ipr.c
1249     @@ -3308,6 +3308,65 @@ static void ipr_release_dump(struct kref *kref)
1250     LEAVE;
1251     }
1252    
1253     +static void ipr_add_remove_thread(struct work_struct *work)
1254     +{
1255     + unsigned long lock_flags;
1256     + struct ipr_resource_entry *res;
1257     + struct scsi_device *sdev;
1258     + struct ipr_ioa_cfg *ioa_cfg =
1259     + container_of(work, struct ipr_ioa_cfg, scsi_add_work_q);
1260     + u8 bus, target, lun;
1261     + int did_work;
1262     +
1263     + ENTER;
1264     + spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1265     +
1266     +restart:
1267     + do {
1268     + did_work = 0;
1269     + if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) {
1270     + spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1271     + return;
1272     + }
1273     +
1274     + list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
1275     + if (res->del_from_ml && res->sdev) {
1276     + did_work = 1;
1277     + sdev = res->sdev;
1278     + if (!scsi_device_get(sdev)) {
1279     + if (!res->add_to_ml)
1280     + list_move_tail(&res->queue, &ioa_cfg->free_res_q);
1281     + else
1282     + res->del_from_ml = 0;
1283     + spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1284     + scsi_remove_device(sdev);
1285     + scsi_device_put(sdev);
1286     + spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1287     + }
1288     + break;
1289     + }
1290     + }
1291     + } while (did_work);
1292     +
1293     + list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
1294     + if (res->add_to_ml) {
1295     + bus = res->bus;
1296     + target = res->target;
1297     + lun = res->lun;
1298     + res->add_to_ml = 0;
1299     + spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1300     + scsi_add_device(ioa_cfg->host, bus, target, lun);
1301     + spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1302     + goto restart;
1303     + }
1304     + }
1305     +
1306     + ioa_cfg->scan_done = 1;
1307     + spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1308     + kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
1309     + LEAVE;
1310     +}
1311     +
1312     /**
1313     * ipr_worker_thread - Worker thread
1314     * @work: ioa config struct
1315     @@ -3322,13 +3381,9 @@ static void ipr_release_dump(struct kref *kref)
1316     static void ipr_worker_thread(struct work_struct *work)
1317     {
1318     unsigned long lock_flags;
1319     - struct ipr_resource_entry *res;
1320     - struct scsi_device *sdev;
1321     struct ipr_dump *dump;
1322     struct ipr_ioa_cfg *ioa_cfg =
1323     container_of(work, struct ipr_ioa_cfg, work_q);
1324     - u8 bus, target, lun;
1325     - int did_work;
1326    
1327     ENTER;
1328     spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1329     @@ -3366,49 +3421,9 @@ static void ipr_worker_thread(struct work_struct *work)
1330     return;
1331     }
1332    
1333     -restart:
1334     - do {
1335     - did_work = 0;
1336     - if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) {
1337     - spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1338     - return;
1339     - }
1340     + schedule_work(&ioa_cfg->scsi_add_work_q);
1341    
1342     - list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
1343     - if (res->del_from_ml && res->sdev) {
1344     - did_work = 1;
1345     - sdev = res->sdev;
1346     - if (!scsi_device_get(sdev)) {
1347     - if (!res->add_to_ml)
1348     - list_move_tail(&res->queue, &ioa_cfg->free_res_q);
1349     - else
1350     - res->del_from_ml = 0;
1351     - spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1352     - scsi_remove_device(sdev);
1353     - scsi_device_put(sdev);
1354     - spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1355     - }
1356     - break;
1357     - }
1358     - }
1359     - } while (did_work);
1360     -
1361     - list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
1362     - if (res->add_to_ml) {
1363     - bus = res->bus;
1364     - target = res->target;
1365     - lun = res->lun;
1366     - res->add_to_ml = 0;
1367     - spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1368     - scsi_add_device(ioa_cfg->host, bus, target, lun);
1369     - spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1370     - goto restart;
1371     - }
1372     - }
1373     -
1374     - ioa_cfg->scan_done = 1;
1375     spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1376     - kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
1377     LEAVE;
1378     }
1379    
1380     @@ -9937,6 +9952,7 @@ static void ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
1381     INIT_LIST_HEAD(&ioa_cfg->free_res_q);
1382     INIT_LIST_HEAD(&ioa_cfg->used_res_q);
1383     INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
1384     + INIT_WORK(&ioa_cfg->scsi_add_work_q, ipr_add_remove_thread);
1385     init_waitqueue_head(&ioa_cfg->reset_wait_q);
1386     init_waitqueue_head(&ioa_cfg->msi_wait_q);
1387     init_waitqueue_head(&ioa_cfg->eeh_wait_q);
1388     diff --git a/drivers/scsi/ipr.h b/drivers/scsi/ipr.h
1389     index c7f0e9e3cd7d..085e6c90f9e6 100644
1390     --- a/drivers/scsi/ipr.h
1391     +++ b/drivers/scsi/ipr.h
1392     @@ -1568,6 +1568,7 @@ struct ipr_ioa_cfg {
1393     u8 saved_mode_page_len;
1394    
1395     struct work_struct work_q;
1396     + struct work_struct scsi_add_work_q;
1397     struct workqueue_struct *reset_work_q;
1398    
1399     wait_queue_head_t reset_wait_q;
1400     diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
1401     index 4a532318b211..6d3091ff9b92 100644
1402     --- a/drivers/scsi/sd.c
1403     +++ b/drivers/scsi/sd.c
1404     @@ -1285,7 +1285,8 @@ static int sd_init_command(struct scsi_cmnd *cmd)
1405     case REQ_OP_ZONE_RESET:
1406     return sd_zbc_setup_reset_cmnd(cmd);
1407     default:
1408     - BUG();
1409     + WARN_ON_ONCE(1);
1410     + return BLKPREP_KILL;
1411     }
1412     }
1413    
1414     diff --git a/drivers/staging/ccree/ssi_buffer_mgr.c b/drivers/staging/ccree/ssi_buffer_mgr.c
1415     index 63936091d524..4ba6e9c422c4 100644
1416     --- a/drivers/staging/ccree/ssi_buffer_mgr.c
1417     +++ b/drivers/staging/ccree/ssi_buffer_mgr.c
1418     @@ -492,7 +492,8 @@ void ssi_buffer_mgr_unmap_blkcipher_request(
1419     DMA_TO_DEVICE);
1420     }
1421     /* Release pool */
1422     - if (req_ctx->dma_buf_type == SSI_DMA_BUF_MLLI) {
1423     + if (req_ctx->dma_buf_type == SSI_DMA_BUF_MLLI &&
1424     + req_ctx->mlli_params.mlli_virt_addr) {
1425     dma_pool_free(req_ctx->mlli_params.curr_pool,
1426     req_ctx->mlli_params.mlli_virt_addr,
1427     req_ctx->mlli_params.mlli_dma_addr);
1428     diff --git a/fs/namespace.c b/fs/namespace.c
1429     index 3ee3ee5819bc..9dc146e7b5e0 100644
1430     --- a/fs/namespace.c
1431     +++ b/fs/namespace.c
1432     @@ -446,10 +446,10 @@ int mnt_want_write_file_path(struct file *file)
1433     {
1434     int ret;
1435    
1436     - sb_start_write(file_inode(file)->i_sb);
1437     + sb_start_write(file->f_path.mnt->mnt_sb);
1438     ret = __mnt_want_write_file(file);
1439     if (ret)
1440     - sb_end_write(file_inode(file)->i_sb);
1441     + sb_end_write(file->f_path.mnt->mnt_sb);
1442     return ret;
1443     }
1444    
1445     @@ -540,8 +540,7 @@ void __mnt_drop_write_file(struct file *file)
1446    
1447     void mnt_drop_write_file_path(struct file *file)
1448     {
1449     - __mnt_drop_write_file(file);
1450     - sb_end_write(file_inode(file)->i_sb);
1451     + mnt_drop_write(file->f_path.mnt);
1452     }
1453    
1454     void mnt_drop_write_file(struct file *file)
1455     diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h
1456     index 87067d23a48b..bfa38da4c261 100644
1457     --- a/include/linux/huge_mm.h
1458     +++ b/include/linux/huge_mm.h
1459     @@ -42,7 +42,7 @@ extern int mincore_huge_pmd(struct vm_area_struct *vma, pmd_t *pmd,
1460     unsigned char *vec);
1461     extern bool move_huge_pmd(struct vm_area_struct *vma, unsigned long old_addr,
1462     unsigned long new_addr, unsigned long old_end,
1463     - pmd_t *old_pmd, pmd_t *new_pmd, bool *need_flush);
1464     + pmd_t *old_pmd, pmd_t *new_pmd);
1465     extern int change_huge_pmd(struct vm_area_struct *vma, pmd_t *pmd,
1466     unsigned long addr, pgprot_t newprot,
1467     int prot_numa);
1468     diff --git a/kernel/memremap.c b/kernel/memremap.c
1469     index 2b136d4988f7..790ddf3bce19 100644
1470     --- a/kernel/memremap.c
1471     +++ b/kernel/memremap.c
1472     @@ -355,10 +355,27 @@ void *devm_memremap_pages(struct device *dev, struct resource *res,
1473     struct dev_pagemap *pgmap;
1474     struct page_map *page_map;
1475     int error, nid, is_ram, i = 0;
1476     + struct dev_pagemap *conflict_pgmap;
1477    
1478     align_start = res->start & ~(SECTION_SIZE - 1);
1479     align_size = ALIGN(res->start + resource_size(res), SECTION_SIZE)
1480     - align_start;
1481     + align_end = align_start + align_size - 1;
1482     +
1483     + conflict_pgmap = get_dev_pagemap(PHYS_PFN(align_start), NULL);
1484     + if (conflict_pgmap) {
1485     + dev_WARN(dev, "Conflicting mapping in same section\n");
1486     + put_dev_pagemap(conflict_pgmap);
1487     + return ERR_PTR(-ENOMEM);
1488     + }
1489     +
1490     + conflict_pgmap = get_dev_pagemap(PHYS_PFN(align_end), NULL);
1491     + if (conflict_pgmap) {
1492     + dev_WARN(dev, "Conflicting mapping in same section\n");
1493     + put_dev_pagemap(conflict_pgmap);
1494     + return ERR_PTR(-ENOMEM);
1495     + }
1496     +
1497     is_ram = region_intersects(align_start, align_size,
1498     IORESOURCE_SYSTEM_RAM, IORES_DESC_NONE);
1499    
1500     @@ -396,7 +413,6 @@ void *devm_memremap_pages(struct device *dev, struct resource *res,
1501    
1502     mutex_lock(&pgmap_lock);
1503     error = 0;
1504     - align_end = align_start + align_size - 1;
1505    
1506     foreach_order_pgoff(res, order, pgoff) {
1507     struct dev_pagemap *dup;
1508     diff --git a/mm/huge_memory.c b/mm/huge_memory.c
1509     index 39c1fedcfdb4..adacfe66cf3d 100644
1510     --- a/mm/huge_memory.c
1511     +++ b/mm/huge_memory.c
1512     @@ -1765,7 +1765,7 @@ static pmd_t move_soft_dirty_pmd(pmd_t pmd)
1513    
1514     bool move_huge_pmd(struct vm_area_struct *vma, unsigned long old_addr,
1515     unsigned long new_addr, unsigned long old_end,
1516     - pmd_t *old_pmd, pmd_t *new_pmd, bool *need_flush)
1517     + pmd_t *old_pmd, pmd_t *new_pmd)
1518     {
1519     spinlock_t *old_ptl, *new_ptl;
1520     pmd_t pmd;
1521     @@ -1796,7 +1796,7 @@ bool move_huge_pmd(struct vm_area_struct *vma, unsigned long old_addr,
1522     if (new_ptl != old_ptl)
1523     spin_lock_nested(new_ptl, SINGLE_DEPTH_NESTING);
1524     pmd = pmdp_huge_get_and_clear(mm, old_addr, old_pmd);
1525     - if (pmd_present(pmd) && pmd_dirty(pmd))
1526     + if (pmd_present(pmd))
1527     force_flush = true;
1528     VM_BUG_ON(!pmd_none(*new_pmd));
1529    
1530     @@ -1807,12 +1807,10 @@ bool move_huge_pmd(struct vm_area_struct *vma, unsigned long old_addr,
1531     }
1532     pmd = move_soft_dirty_pmd(pmd);
1533     set_pmd_at(mm, new_addr, new_pmd, pmd);
1534     - if (new_ptl != old_ptl)
1535     - spin_unlock(new_ptl);
1536     if (force_flush)
1537     flush_tlb_range(vma, old_addr, old_addr + PMD_SIZE);
1538     - else
1539     - *need_flush = true;
1540     + if (new_ptl != old_ptl)
1541     + spin_unlock(new_ptl);
1542     spin_unlock(old_ptl);
1543     return true;
1544     }
1545     diff --git a/mm/mremap.c b/mm/mremap.c
1546     index 049470aa1e3e..88ceeb4ef817 100644
1547     --- a/mm/mremap.c
1548     +++ b/mm/mremap.c
1549     @@ -115,7 +115,7 @@ static pte_t move_soft_dirty_pte(pte_t pte)
1550     static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
1551     unsigned long old_addr, unsigned long old_end,
1552     struct vm_area_struct *new_vma, pmd_t *new_pmd,
1553     - unsigned long new_addr, bool need_rmap_locks, bool *need_flush)
1554     + unsigned long new_addr, bool need_rmap_locks)
1555     {
1556     struct mm_struct *mm = vma->vm_mm;
1557     pte_t *old_pte, *new_pte, pte;
1558     @@ -163,15 +163,17 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
1559    
1560     pte = ptep_get_and_clear(mm, old_addr, old_pte);
1561     /*
1562     - * If we are remapping a dirty PTE, make sure
1563     + * If we are remapping a valid PTE, make sure
1564     * to flush TLB before we drop the PTL for the
1565     - * old PTE or we may race with page_mkclean().
1566     + * PTE.
1567     *
1568     - * This check has to be done after we removed the
1569     - * old PTE from page tables or another thread may
1570     - * dirty it after the check and before the removal.
1571     + * NOTE! Both old and new PTL matter: the old one
1572     + * for racing with page_mkclean(), the new one to
1573     + * make sure the physical page stays valid until
1574     + * the TLB entry for the old mapping has been
1575     + * flushed.
1576     */
1577     - if (pte_present(pte) && pte_dirty(pte))
1578     + if (pte_present(pte))
1579     force_flush = true;
1580     pte = move_pte(pte, new_vma->vm_page_prot, old_addr, new_addr);
1581     pte = move_soft_dirty_pte(pte);
1582     @@ -179,13 +181,11 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
1583     }
1584    
1585     arch_leave_lazy_mmu_mode();
1586     + if (force_flush)
1587     + flush_tlb_range(vma, old_end - len, old_end);
1588     if (new_ptl != old_ptl)
1589     spin_unlock(new_ptl);
1590     pte_unmap(new_pte - 1);
1591     - if (force_flush)
1592     - flush_tlb_range(vma, old_end - len, old_end);
1593     - else
1594     - *need_flush = true;
1595     pte_unmap_unlock(old_pte - 1, old_ptl);
1596     if (need_rmap_locks)
1597     drop_rmap_locks(vma);
1598     @@ -200,7 +200,6 @@ unsigned long move_page_tables(struct vm_area_struct *vma,
1599     {
1600     unsigned long extent, next, old_end;
1601     pmd_t *old_pmd, *new_pmd;
1602     - bool need_flush = false;
1603     unsigned long mmun_start; /* For mmu_notifiers */
1604     unsigned long mmun_end; /* For mmu_notifiers */
1605    
1606     @@ -231,8 +230,7 @@ unsigned long move_page_tables(struct vm_area_struct *vma,
1607     if (need_rmap_locks)
1608     take_rmap_locks(vma);
1609     moved = move_huge_pmd(vma, old_addr, new_addr,
1610     - old_end, old_pmd, new_pmd,
1611     - &need_flush);
1612     + old_end, old_pmd, new_pmd);
1613     if (need_rmap_locks)
1614     drop_rmap_locks(vma);
1615     if (moved)
1616     @@ -250,10 +248,8 @@ unsigned long move_page_tables(struct vm_area_struct *vma,
1617     if (extent > LATENCY_LIMIT)
1618     extent = LATENCY_LIMIT;
1619     move_ptes(vma, old_pmd, old_addr, old_addr + extent, new_vma,
1620     - new_pmd, new_addr, need_rmap_locks, &need_flush);
1621     + new_pmd, new_addr, need_rmap_locks);
1622     }
1623     - if (need_flush)
1624     - flush_tlb_range(vma, old_end-len, old_addr);
1625    
1626     mmu_notifier_invalidate_range_end(vma->vm_mm, mmun_start, mmun_end);
1627    
1628     diff --git a/net/batman-adv/bat_v_elp.c b/net/batman-adv/bat_v_elp.c
1629     index bd1064d98e16..e92dfedccc16 100644
1630     --- a/net/batman-adv/bat_v_elp.c
1631     +++ b/net/batman-adv/bat_v_elp.c
1632     @@ -227,7 +227,7 @@ batadv_v_elp_wifi_neigh_probe(struct batadv_hardif_neigh_node *neigh)
1633     * the packet to be exactly of that size to make the link
1634     * throughput estimation effective.
1635     */
1636     - skb_put(skb, probe_len - hard_iface->bat_v.elp_skb->len);
1637     + skb_put_zero(skb, probe_len - hard_iface->bat_v.elp_skb->len);
1638    
1639     batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
1640     "Sending unicast (probe) ELP packet on interface %s to %pM\n",
1641     @@ -254,6 +254,7 @@ static void batadv_v_elp_periodic_work(struct work_struct *work)
1642     struct batadv_priv *bat_priv;
1643     struct sk_buff *skb;
1644     u32 elp_interval;
1645     + bool ret;
1646    
1647     bat_v = container_of(work, struct batadv_hard_iface_bat_v, elp_wq.work);
1648     hard_iface = container_of(bat_v, struct batadv_hard_iface, bat_v);
1649     @@ -315,8 +316,11 @@ static void batadv_v_elp_periodic_work(struct work_struct *work)
1650     * may sleep and that is not allowed in an rcu protected
1651     * context. Therefore schedule a task for that.
1652     */
1653     - queue_work(batadv_event_workqueue,
1654     - &hardif_neigh->bat_v.metric_work);
1655     + ret = queue_work(batadv_event_workqueue,
1656     + &hardif_neigh->bat_v.metric_work);
1657     +
1658     + if (!ret)
1659     + batadv_hardif_neigh_put(hardif_neigh);
1660     }
1661     rcu_read_unlock();
1662    
1663     diff --git a/net/batman-adv/bridge_loop_avoidance.c b/net/batman-adv/bridge_loop_avoidance.c
1664     index 422ee16b7854..c3c848f64fdd 100644
1665     --- a/net/batman-adv/bridge_loop_avoidance.c
1666     +++ b/net/batman-adv/bridge_loop_avoidance.c
1667     @@ -1772,6 +1772,7 @@ batadv_bla_loopdetect_check(struct batadv_priv *bat_priv, struct sk_buff *skb,
1668     {
1669     struct batadv_bla_backbone_gw *backbone_gw;
1670     struct ethhdr *ethhdr;
1671     + bool ret;
1672    
1673     ethhdr = eth_hdr(skb);
1674    
1675     @@ -1795,8 +1796,13 @@ batadv_bla_loopdetect_check(struct batadv_priv *bat_priv, struct sk_buff *skb,
1676     if (unlikely(!backbone_gw))
1677     return true;
1678    
1679     - queue_work(batadv_event_workqueue, &backbone_gw->report_work);
1680     - /* backbone_gw is unreferenced in the report work function function */
1681     + ret = queue_work(batadv_event_workqueue, &backbone_gw->report_work);
1682     +
1683     + /* backbone_gw is unreferenced in the report work function function
1684     + * if queue_work() call was successful
1685     + */
1686     + if (!ret)
1687     + batadv_backbone_gw_put(backbone_gw);
1688    
1689     return true;
1690     }
1691     diff --git a/net/batman-adv/gateway_client.c b/net/batman-adv/gateway_client.c
1692     index 06276ae9f752..c6a7341f0527 100644
1693     --- a/net/batman-adv/gateway_client.c
1694     +++ b/net/batman-adv/gateway_client.c
1695     @@ -31,6 +31,7 @@
1696     #include <linux/kernel.h>
1697     #include <linux/kref.h>
1698     #include <linux/list.h>
1699     +#include <linux/lockdep.h>
1700     #include <linux/netdevice.h>
1701     #include <linux/netlink.h>
1702     #include <linux/rculist.h>
1703     @@ -325,6 +326,9 @@ out:
1704     * @bat_priv: the bat priv with all the soft interface information
1705     * @orig_node: originator announcing gateway capabilities
1706     * @gateway: announced bandwidth information
1707     + *
1708     + * Has to be called with the appropriate locks being acquired
1709     + * (gw.list_lock).
1710     */
1711     static void batadv_gw_node_add(struct batadv_priv *bat_priv,
1712     struct batadv_orig_node *orig_node,
1713     @@ -332,6 +336,8 @@ static void batadv_gw_node_add(struct batadv_priv *bat_priv,
1714     {
1715     struct batadv_gw_node *gw_node;
1716    
1717     + lockdep_assert_held(&bat_priv->gw.list_lock);
1718     +
1719     if (gateway->bandwidth_down == 0)
1720     return;
1721    
1722     @@ -346,10 +352,8 @@ static void batadv_gw_node_add(struct batadv_priv *bat_priv,
1723     gw_node->bandwidth_down = ntohl(gateway->bandwidth_down);
1724     gw_node->bandwidth_up = ntohl(gateway->bandwidth_up);
1725    
1726     - spin_lock_bh(&bat_priv->gw.list_lock);
1727     kref_get(&gw_node->refcount);
1728     hlist_add_head_rcu(&gw_node->list, &bat_priv->gw.gateway_list);
1729     - spin_unlock_bh(&bat_priv->gw.list_lock);
1730    
1731     batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
1732     "Found new gateway %pM -> gw bandwidth: %u.%u/%u.%u MBit\n",
1733     @@ -405,11 +409,14 @@ void batadv_gw_node_update(struct batadv_priv *bat_priv,
1734     {
1735     struct batadv_gw_node *gw_node, *curr_gw = NULL;
1736    
1737     + spin_lock_bh(&bat_priv->gw.list_lock);
1738     gw_node = batadv_gw_node_get(bat_priv, orig_node);
1739     if (!gw_node) {
1740     batadv_gw_node_add(bat_priv, orig_node, gateway);
1741     + spin_unlock_bh(&bat_priv->gw.list_lock);
1742     goto out;
1743     }
1744     + spin_unlock_bh(&bat_priv->gw.list_lock);
1745    
1746     if ((gw_node->bandwidth_down == ntohl(gateway->bandwidth_down)) &&
1747     (gw_node->bandwidth_up == ntohl(gateway->bandwidth_up)))
1748     diff --git a/net/batman-adv/network-coding.c b/net/batman-adv/network-coding.c
1749     index 3604d7899e2c..7a7dcac20566 100644
1750     --- a/net/batman-adv/network-coding.c
1751     +++ b/net/batman-adv/network-coding.c
1752     @@ -850,16 +850,27 @@ batadv_nc_get_nc_node(struct batadv_priv *bat_priv,
1753     spinlock_t *lock; /* Used to lock list selected by "int in_coding" */
1754     struct list_head *list;
1755    
1756     + /* Select ingoing or outgoing coding node */
1757     + if (in_coding) {
1758     + lock = &orig_neigh_node->in_coding_list_lock;
1759     + list = &orig_neigh_node->in_coding_list;
1760     + } else {
1761     + lock = &orig_neigh_node->out_coding_list_lock;
1762     + list = &orig_neigh_node->out_coding_list;
1763     + }
1764     +
1765     + spin_lock_bh(lock);
1766     +
1767     /* Check if nc_node is already added */
1768     nc_node = batadv_nc_find_nc_node(orig_node, orig_neigh_node, in_coding);
1769    
1770     /* Node found */
1771     if (nc_node)
1772     - return nc_node;
1773     + goto unlock;
1774    
1775     nc_node = kzalloc(sizeof(*nc_node), GFP_ATOMIC);
1776     if (!nc_node)
1777     - return NULL;
1778     + goto unlock;
1779    
1780     /* Initialize nc_node */
1781     INIT_LIST_HEAD(&nc_node->list);
1782     @@ -868,22 +879,14 @@ batadv_nc_get_nc_node(struct batadv_priv *bat_priv,
1783     kref_get(&orig_neigh_node->refcount);
1784     nc_node->orig_node = orig_neigh_node;
1785    
1786     - /* Select ingoing or outgoing coding node */
1787     - if (in_coding) {
1788     - lock = &orig_neigh_node->in_coding_list_lock;
1789     - list = &orig_neigh_node->in_coding_list;
1790     - } else {
1791     - lock = &orig_neigh_node->out_coding_list_lock;
1792     - list = &orig_neigh_node->out_coding_list;
1793     - }
1794     -
1795     batadv_dbg(BATADV_DBG_NC, bat_priv, "Adding nc_node %pM -> %pM\n",
1796     nc_node->addr, nc_node->orig_node->orig);
1797    
1798     /* Add nc_node to orig_node */
1799     - spin_lock_bh(lock);
1800     kref_get(&nc_node->refcount);
1801     list_add_tail_rcu(&nc_node->list, list);
1802     +
1803     +unlock:
1804     spin_unlock_bh(lock);
1805    
1806     return nc_node;
1807     diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
1808     index aa2c49fa31ce..8cedb5db1ab3 100644
1809     --- a/net/batman-adv/soft-interface.c
1810     +++ b/net/batman-adv/soft-interface.c
1811     @@ -566,15 +566,20 @@ int batadv_softif_create_vlan(struct batadv_priv *bat_priv, unsigned short vid)
1812     struct batadv_softif_vlan *vlan;
1813     int err;
1814    
1815     + spin_lock_bh(&bat_priv->softif_vlan_list_lock);
1816     +
1817     vlan = batadv_softif_vlan_get(bat_priv, vid);
1818     if (vlan) {
1819     batadv_softif_vlan_put(vlan);
1820     + spin_unlock_bh(&bat_priv->softif_vlan_list_lock);
1821     return -EEXIST;
1822     }
1823    
1824     vlan = kzalloc(sizeof(*vlan), GFP_ATOMIC);
1825     - if (!vlan)
1826     + if (!vlan) {
1827     + spin_unlock_bh(&bat_priv->softif_vlan_list_lock);
1828     return -ENOMEM;
1829     + }
1830    
1831     vlan->bat_priv = bat_priv;
1832     vlan->vid = vid;
1833     @@ -582,17 +587,23 @@ int batadv_softif_create_vlan(struct batadv_priv *bat_priv, unsigned short vid)
1834    
1835     atomic_set(&vlan->ap_isolation, 0);
1836    
1837     + kref_get(&vlan->refcount);
1838     + hlist_add_head_rcu(&vlan->list, &bat_priv->softif_vlan_list);
1839     + spin_unlock_bh(&bat_priv->softif_vlan_list_lock);
1840     +
1841     + /* batadv_sysfs_add_vlan cannot be in the spinlock section due to the
1842     + * sleeping behavior of the sysfs functions and the fs_reclaim lock
1843     + */
1844     err = batadv_sysfs_add_vlan(bat_priv->soft_iface, vlan);
1845     if (err) {
1846     - kfree(vlan);
1847     + /* ref for the function */
1848     + batadv_softif_vlan_put(vlan);
1849     +
1850     + /* ref for the list */
1851     + batadv_softif_vlan_put(vlan);
1852     return err;
1853     }
1854    
1855     - spin_lock_bh(&bat_priv->softif_vlan_list_lock);
1856     - kref_get(&vlan->refcount);
1857     - hlist_add_head_rcu(&vlan->list, &bat_priv->softif_vlan_list);
1858     - spin_unlock_bh(&bat_priv->softif_vlan_list_lock);
1859     -
1860     /* add a new TT local entry. This one will be marked with the NOPURGE
1861     * flag
1862     */
1863     diff --git a/net/batman-adv/sysfs.c b/net/batman-adv/sysfs.c
1864     index 0ae8b30e4eaa..2ef9b136fc39 100644
1865     --- a/net/batman-adv/sysfs.c
1866     +++ b/net/batman-adv/sysfs.c
1867     @@ -186,7 +186,8 @@ ssize_t batadv_store_##_name(struct kobject *kobj, \
1868     \
1869     return __batadv_store_uint_attr(buff, count, _min, _max, \
1870     _post_func, attr, \
1871     - &bat_priv->_var, net_dev); \
1872     + &bat_priv->_var, net_dev, \
1873     + NULL); \
1874     }
1875    
1876     #define BATADV_ATTR_SIF_SHOW_UINT(_name, _var) \
1877     @@ -260,7 +261,9 @@ ssize_t batadv_store_##_name(struct kobject *kobj, \
1878     \
1879     length = __batadv_store_uint_attr(buff, count, _min, _max, \
1880     _post_func, attr, \
1881     - &hard_iface->_var, net_dev); \
1882     + &hard_iface->_var, \
1883     + hard_iface->soft_iface, \
1884     + net_dev); \
1885     \
1886     batadv_hardif_put(hard_iface); \
1887     return length; \
1888     @@ -354,10 +357,12 @@ __batadv_store_bool_attr(char *buff, size_t count,
1889    
1890     static int batadv_store_uint_attr(const char *buff, size_t count,
1891     struct net_device *net_dev,
1892     + struct net_device *slave_dev,
1893     const char *attr_name,
1894     unsigned int min, unsigned int max,
1895     atomic_t *attr)
1896     {
1897     + char ifname[IFNAMSIZ + 3] = "";
1898     unsigned long uint_val;
1899     int ret;
1900    
1901     @@ -383,8 +388,11 @@ static int batadv_store_uint_attr(const char *buff, size_t count,
1902     if (atomic_read(attr) == uint_val)
1903     return count;
1904    
1905     - batadv_info(net_dev, "%s: Changing from: %i to: %lu\n",
1906     - attr_name, atomic_read(attr), uint_val);
1907     + if (slave_dev)
1908     + snprintf(ifname, sizeof(ifname), "%s: ", slave_dev->name);
1909     +
1910     + batadv_info(net_dev, "%s: %sChanging from: %i to: %lu\n",
1911     + attr_name, ifname, atomic_read(attr), uint_val);
1912    
1913     atomic_set(attr, uint_val);
1914     return count;
1915     @@ -395,12 +403,13 @@ static ssize_t __batadv_store_uint_attr(const char *buff, size_t count,
1916     void (*post_func)(struct net_device *),
1917     const struct attribute *attr,
1918     atomic_t *attr_store,
1919     - struct net_device *net_dev)
1920     + struct net_device *net_dev,
1921     + struct net_device *slave_dev)
1922     {
1923     int ret;
1924    
1925     - ret = batadv_store_uint_attr(buff, count, net_dev, attr->name, min, max,
1926     - attr_store);
1927     + ret = batadv_store_uint_attr(buff, count, net_dev, slave_dev,
1928     + attr->name, min, max, attr_store);
1929     if (post_func && ret)
1930     post_func(net_dev);
1931    
1932     @@ -569,7 +578,7 @@ static ssize_t batadv_store_gw_sel_class(struct kobject *kobj,
1933     return __batadv_store_uint_attr(buff, count, 1, BATADV_TQ_MAX_VALUE,
1934     batadv_post_gw_reselect, attr,
1935     &bat_priv->gw.sel_class,
1936     - bat_priv->soft_iface);
1937     + bat_priv->soft_iface, NULL);
1938     }
1939    
1940     static ssize_t batadv_show_gw_bwidth(struct kobject *kobj,
1941     @@ -1078,8 +1087,9 @@ static ssize_t batadv_store_throughput_override(struct kobject *kobj,
1942     if (old_tp_override == tp_override)
1943     goto out;
1944    
1945     - batadv_info(net_dev, "%s: Changing from: %u.%u MBit to: %u.%u MBit\n",
1946     - "throughput_override",
1947     + batadv_info(hard_iface->soft_iface,
1948     + "%s: %s: Changing from: %u.%u MBit to: %u.%u MBit\n",
1949     + "throughput_override", net_dev->name,
1950     old_tp_override / 10, old_tp_override % 10,
1951     tp_override / 10, tp_override % 10);
1952    
1953     diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
1954     index 0f4d4eece3e4..9da3455847ff 100644
1955     --- a/net/batman-adv/translation-table.c
1956     +++ b/net/batman-adv/translation-table.c
1957     @@ -1587,6 +1587,8 @@ batadv_tt_global_orig_entry_add(struct batadv_tt_global_entry *tt_global,
1958     {
1959     struct batadv_tt_orig_list_entry *orig_entry;
1960    
1961     + spin_lock_bh(&tt_global->list_lock);
1962     +
1963     orig_entry = batadv_tt_global_orig_entry_find(tt_global, orig_node);
1964     if (orig_entry) {
1965     /* refresh the ttvn: the current value could be a bogus one that
1966     @@ -1609,11 +1611,9 @@ batadv_tt_global_orig_entry_add(struct batadv_tt_global_entry *tt_global,
1967     orig_entry->flags = flags;
1968     kref_init(&orig_entry->refcount);
1969    
1970     - spin_lock_bh(&tt_global->list_lock);
1971     kref_get(&orig_entry->refcount);
1972     hlist_add_head_rcu(&orig_entry->list,
1973     &tt_global->orig_list);
1974     - spin_unlock_bh(&tt_global->list_lock);
1975     atomic_inc(&tt_global->orig_list_count);
1976    
1977     sync_flags:
1978     @@ -1621,6 +1621,8 @@ sync_flags:
1979     out:
1980     if (orig_entry)
1981     batadv_tt_orig_list_entry_put(orig_entry);
1982     +
1983     + spin_unlock_bh(&tt_global->list_lock);
1984     }
1985    
1986     /**
1987     diff --git a/net/batman-adv/tvlv.c b/net/batman-adv/tvlv.c
1988     index 1d9e267caec9..d6d6d95e48aa 100644
1989     --- a/net/batman-adv/tvlv.c
1990     +++ b/net/batman-adv/tvlv.c
1991     @@ -528,15 +528,20 @@ void batadv_tvlv_handler_register(struct batadv_priv *bat_priv,
1992     {
1993     struct batadv_tvlv_handler *tvlv_handler;
1994    
1995     + spin_lock_bh(&bat_priv->tvlv.handler_list_lock);
1996     +
1997     tvlv_handler = batadv_tvlv_handler_get(bat_priv, type, version);
1998     if (tvlv_handler) {
1999     + spin_unlock_bh(&bat_priv->tvlv.handler_list_lock);
2000     batadv_tvlv_handler_put(tvlv_handler);
2001     return;
2002     }
2003    
2004     tvlv_handler = kzalloc(sizeof(*tvlv_handler), GFP_ATOMIC);
2005     - if (!tvlv_handler)
2006     + if (!tvlv_handler) {
2007     + spin_unlock_bh(&bat_priv->tvlv.handler_list_lock);
2008     return;
2009     + }
2010    
2011     tvlv_handler->ogm_handler = optr;
2012     tvlv_handler->unicast_handler = uptr;
2013     @@ -546,7 +551,6 @@ void batadv_tvlv_handler_register(struct batadv_priv *bat_priv,
2014     kref_init(&tvlv_handler->refcount);
2015     INIT_HLIST_NODE(&tvlv_handler->list);
2016    
2017     - spin_lock_bh(&bat_priv->tvlv.handler_list_lock);
2018     kref_get(&tvlv_handler->refcount);
2019     hlist_add_head_rcu(&tvlv_handler->list, &bat_priv->tvlv.handler_list);
2020     spin_unlock_bh(&bat_priv->tvlv.handler_list_lock);